Home / 187,612.86-258,903.16-102,729.91

Finding the Fourth Proportional to 187,612.86, 258,903.16 and 102,729.91

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Solution

The fourth proportional to 187,612.86, 258,903.16 and 102,729.91 is: 141,765.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,612.86 : 258,903.16 = 102,729.91 : x
  2. Step 2: Convert to fraction form
    187,612.86/258,903.16 = 102,729.91/x
  3. Step 3: Cross multiply
    187,612.86x = 258,903.16 × 102,729.91
  4. Step 4: Simplify right side
    187,612.86x = 26,597,098,325.52
  5. Step 5: Solve for x
    x = 26,597,098,325.52/187,612.86
  6. Step 6: Final answer
    x = 141,765.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.